Why is Thailand obsessed with high spenders. They are few and far between so can never help in any meaningful way. The UK vaccination programme is a fantastic success and shows how opening up will be done. Vaccination and vaccine passports are the only viable way forward and then concentrate on mass tourism. Get people in small places and leave the big spenders to sort themselves out. Backpackers, sex tourists and families can be brought back with very little investment compared to how many ordinary Thais that they will support. Rich people support rich people far more than the poor.